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最近美国“发现号”航天飞机重返太空成功。这是美国航天飞机的第二十六次飞行,也是继1986年1月“挑战者”号航天飞机事故之后的两年多时间里的第一次飞行。“挑战者”号航天飞机发生事故之后,美国国家航空航天局耗资24亿美元,对航天飞机进行了400多项改进,其中对它的主发动机作了30多项改进,并进行了多次点火试验。“发现号”航天飞机的飞行成功将为英国今后实施庞大的航天发展计划奠定基础。新的航天发展计划已于今年2月11日由美国总统里根正式宣布了。这项雄心勃勃的新航天计划包括近期发展规划和长期发展规划。整个计划将在今后50年内完成,估计耗资7000亿美元。近
The space shuttle Discovery recently returned to space successfully. This is the twenty-sixth flight of the U.S. space shuttle and the first of more than two years after the “Challenger” space shuttle accident in January 1986. After the Challenger space shuttle accident, NASA spent 2.4 billion U.S. dollars on the space shuttle made more than 400 improvements, including its main engine made more than 30 improvements, and conducted several ignition test. The successful flying of the space shuttle Discovery will lay the foundation for the future implementation of the huge space development plan by the United Kingdom. The new space development plan was officially announced by U.S. President Reagan on February 11 this year. This ambitious new space program includes recent development plans and long-term development plans. The entire plan will be completed in the next 50 years, estimated at a cost of 700 billion US dollars. near